public State(char value, TuringMachineAction action0, TuringMachineAction action1)
{
Value = value;
_actions = new Dictionary <byte, TuringMachineAction> {
{ action0.Value, action0 }, { action1.Value, action1 }
};
}
public PuzzleSolver(string input)
{
_statesDictionary = new Dictionary <char, State>();
foreach (var match in Regex.Matches(input,
"In state (?<state>\\w)[\\S\\s]*?" +
"If the current value is (?<value0>\\d)[\\S\\s]*?" +
"Write.*?(?<conditionValue01>\\d)[\\S\\s]*?" +
"Move.*?(?<conditionValue02>((left)|(right)))[\\S\\s]*?" +
"Continue.*?(?<conditionValue03>[A-Z])[\\S\\s]*?" +
"If the current value is (?<value1>\\d)[\\S\\s]*?" +
"Write.*?(?<conditionValue11>\\d)[\\S\\s]*?" +
"Move.*?(?<conditionValue12>((left)|(right)))[\\S\\s]*?" +
"Continue.*?(?<conditionValue13>[A-Z])[\\S\\s]*?")
.OfType <Match>())
{
var action0 = new TuringMachineAction(Convert.ToByte(match.Groups["value0"].Value),
match.Groups["conditionValue03"].Value[0],
match.Groups["conditionValue02"].Value.GetMoveDirection(),
Convert.ToByte(match.Groups["conditionValue01"].Value));
var action1 = new TuringMachineAction(Convert.ToByte(match.Groups["value1"].Value),
match.Groups["conditionValue13"].Value[0],
match.Groups["conditionValue12"].Value.GetMoveDirection(),
Convert.ToByte(match.Groups["conditionValue11"].Value));
var state = new State(match.Groups["state"].Value[0], action0, action1);
_statesDictionary.Add(state.Value, state);
}
_initalState = Regex.Match(input, "(?<=Begin in state )[A-Z]").Value[0];
_diagnosticChecksumSteps =
Convert.ToInt32(Regex.Match(input, "(?<=Perform a diagnostic checksum after )\\d+").Value);
}
